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Finding the Fourth Proportional to 288,234.48, 397,880.82 and 186,268.34

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Solution

The fourth proportional to 288,234.48, 397,880.82 and 186,268.34 is: 257,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,234.48 : 397,880.82 = 186,268.34 : x
  2. Step 2: Convert to fraction form
    288,234.48/397,880.82 = 186,268.34/x
  3. Step 3: Cross multiply
    288,234.48x = 397,880.82 × 186,268.34
  4. Step 4: Simplify right side
    288,234.48x = 74,112,599,859.24
  5. Step 5: Solve for x
    x = 74,112,599,859.24/288,234.48
  6. Step 6: Final answer
    x = 257,126.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.